Hillebrand, E. (2007). Too many or too few?: Demographic growth and international migration ([Electronic ed.].). Friedrich-Ebert-Stiftung, Dept. for Development Policy.
Chicago-Zitierstil (17. Ausg.)Hillebrand, Ernst. Too Many or Too Few?: Demographic Growth and International Migration. [Electronic ed.]. Berlin: Friedrich-Ebert-Stiftung, Dept. for Development Policy, 2007.
MLA-Zitierstil (9. Ausg.)Hillebrand, Ernst. Too Many or Too Few?: Demographic Growth and International Migration. [Electronic ed.]. Friedrich-Ebert-Stiftung, Dept. for Development Policy, 2007.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.